Create a simple black and white line drawing of classic cars, designed for a children’s coloring book. The image should feature clean, bold black outlines with no shading, gray areas, or gradients. Focus on iconic car shapes from the past, making the design fun and easy to color. Ensure that the drawing is simple, with larger areas for coloring and no intricate details. All lines should be of uniform thickness, and the entire image must be strictly black and white